[T3] under the cylinder cooling tin

[Jim Adney]

On 13 Jun 2016 at 13:06, ken2k wrote:

>  My 66 type 34 was rebuilt a few years ago and it starts right up,
> idles perfect and drives great.however, after driving it takes a few
> hours to cool down enough to start again. I noticedthat the tin under
> the cylinders is not the same as I am used to, it doesn't wrap around
> the side of the cylinders. my question is could this be the cause ofit
> running hot and can it be fixed  using the spring loaded push rod
> tubes.

Up until '71, we all got the old style little 4 x 4" square piece of 
tin. From '71-on, there's a much more complicated piece that got 
called "cool tin."

Push rod tubes won't have any effect on this. I'm guessing that 
you're getting vapor lock from the "heat soak after shutdown." I 
don't know if there's anything in particular about those cars that 
makes them more prone to this, but you should make sure your cooling 
system is all good: bellows in place, no rust holes that can suck in 
hot air, not running too lean, etc.

-- 
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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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